O

O

• Obregonia
• Ochagavia
• Ochna
• Ocimum
• Odontioda
• Odontocidium
• Odontoglossum
• Odontonema
• Odontonia
• Oemleria
• Oenanthe
• Oenothera
• Olea - Olive
• Olearia
• Olneya
• Olsynium
• Omphalodes
• Omphalogramma
• Oncidium
• Onoclea
• Ononis
• Onopordum
• Onosma
• Oophytum
• Ophiopogon
• Ophrys
• Ophthalmophyllum
• Oplismenus
• Opuntia
• Orbea
• Orbeopsis
• Orchis
• Oreocereus
• Origanum
• Orixa
• Ornithogalum
• Ornithophora
• Orontium
• Orostachys
• Oroya
• Ortegocactus
• Orthophytum
• Orthrosanthus
• Orychophragmus
• Oryza
• Osbeckia
• Osmanthus
• Osmarea
• Osmaronia
• Osmunda
• Osteomeles
• Osteospermum
• Ostrowskia
• Ostrya
• Othonna
• Ourisia
• Oxalis
• Oxydendrum
• Ozothamnus

Telopea - Waratah

Waratah (Telopea) is a genus of five species of large shrubs or small trees in the Proteaceae, native to southeastern Australia, from New South Wales, Victoria and Tasmania. They have spirally arranged leaves 10-20 cm long and 2-3 cm broad... more >>>

Zigadenus

The Deathcamases or Star Lilies are the genus Zigadenus of flowering plants.

Deathcamases are perennial plants growing from a bulb or rhizome. In most cases they have long narrow leaves that grow from the base of the plant. The... more >>>

Tanacetum

Tanacetum is a genus of about 70 species of flowering plant in the family Asteraceae, native to temperate regions of the Northern Hemisphere.

Common names include Tansy (Tanacetum vulgare; sometimes called Common Tansy or Garden... more >>>

Foeniculum, Fennel

Foeniculum is a genus of fewer than half a dozen species, in the family Apiaceae.

It is best known for Fennel (Foeniculum vulgare), treated by some botanists as the sole species in the genus.


Fennel... more >>>

Nidularium

Nidularium is a genus of the botanical family Bromeliaceae, subfamily Bromelioideae. Named to describe the nestling characteristic of the inflorescence (Lat. nidulus = little nest), they are native to the rainforests of Brazil. Commonly... more >>>